Miguel Servet Park is the largest and one of the oldest parks in the city. Its construction began in 1928 and it has a wide variety of plants, from the very common ones to others originating from China and Japan, such as the gingo. There are also animals such as ducks, geese and swans in the ponds. The park has commemorative monuments, including Las Pajaritas, the work of Ramón Acín, which are considered the symbol of the city.

Prior to the construction of the municipal park, the former gardens of the Lastanosa family, which owned a palace that was demolished at the end of the 19th century, were located in this area. On 16 March 1928, the construction of the park in this area of the city was approved and the city council expropriated more than 3.76 hectares of orchard and garden.

The park was designed by Antonio Uceda, Bruno Farina and Santos Coarasa, with the collaboration of the architect José Luis de León and the artist Ramón Acín. The Catalan Domingo Vidal, a qualified gardener, directed the floral construction of Michael Servetus Park, which began to be built in 1928, with the help of several market gardeners.

The park was officially inaugurated in 1930, but it had not yet been decided to dedicate the park to Servetus. It was in the following year when the town council approved José Jarné's idea to name the park after this Spanish theologian and scientist.

In the 1960s, with Emilio Miravé as mayor and José Antonio Llanas as councillor for Parks and Gardens, the project to extend the park to the southwest was approved. More orchard land was taken up and in this way the park linked the Huesca expansion area with the historic centre. With this expansion, new elements were created and more nature was added. After the expansion, the park occupied 6.95 hectares.